The guys from Old Dominion—Matthew Ramsey, Trevor Rosen, Geoff Sprung, Brad Tursi and Whit Sellers—scored the fifth No. 1 single of their career as “Hotel Key” ascended to the top of both the Mediabase chart and Billboard Country Airplay chart. “Hotel Key,” which is featured on the band’s 2017 No. 1 album, Happy Endings, was…